Eddy Current Conductivity Setpoint Calibration
The setpoint for eddy current conductivity is calibrated against reference standards to check the structure or alloy of the steel. This indicates thermal damage.
Physical-Chemical Mechanism of Action
The eddy current conductivity of a material depends on its electrical properties. In metals, especially steels, thermal damage affects the crystal structure and therefore how well electrons can move.
Metallurgical Relevance & Welding Risks
A wrong setpoint can lead to incorrect results. That can cause misjudgments in microstructure analysis and make you miss thermal damage in the workpiece, which is a risk for strength and behavior under load.
Workshop Practice & Action Steps
1. Calibrate the test system regularly against reference standards with known properties.
2. Make sure test conditions (temperature, voltage) stay constant.
3. Compare measured values against the setpoint and check for deviations.
4. Document all calibrations and test results thoroughly.